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Jingdao Microelectronics MM3Z5V1B
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic MM3Z5V1B
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- MM3Z5V1B
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzt)
- 130Ω
- Electronic Component
- BM0230630738
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 300mW
- Electronic Component
- 5V~5.2V
- Electronic Component
- 55℃~+150℃
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MM3Z5V1B 产品概述
MM3Z5V1B 是晶导微电子推出的一款独立式低功耗稳压二极管，标称稳压值为5.1V（实际范围5.0V～5.2V），采用 SOD-323 表面贴装封装，适用于电源基准、偏置稳压与小电流过压保护等场合。器件具有低反向漏流和较低的结温工作范围，便于在空间受限的移动设备与工业控制板上应用。
一、主要参数
- 稳压值（标称）：5.1V（范围 5.0V ～ 5.2V）
- 反向电流 Ir：2 μA @ 1.5V
- 耗散功率 Pd：300 mW（注意板上散热条件影响实际可用功率）
- 阻抗 Zzt：约 130 Ω（表示动态阻抗，对稳压精度有影响）
- 工作结温范围：-55 ℃ ～ +150 ℃
- 封装：SOD-323（小体积独立二极管）
二、特点与应用场景
- 特点：体积小、反向漏流低、适合低功耗参考与偏置回路；SOD-323 便于自动贴装生产。
- 典型应用：基准电压、模拟/数字电路偏置、低功耗稳压模块、信号线简单过压保护、电池供电设备的参考源等。
三、使用与设计建议
- 功率与电流：理论最大稳压电流 Iz_max ≈ Pd / Vz = 300mW / 5.1V ≈ 59 mA；为保证可靠性建议典型工作电流远低于此值（常取 5–25 mA，视热散情况而定）。
- 串联限流电阻示例：若输入 12V、目标 Iz = 20 mA，则 R = (12V − 5.1V) / 20mA ≈ 345 Ω；并检查在最坏工况下耗散不超过 Pd。
- 稳压精度：Zzt = 130 Ω 意味着在小电流变化下电压有明显波动，需在需要高精度基准时并联低噪声放大或选用精密参考源。
- 散热：SOD-323 封装散热受限，建议在 PCB 上使用相对较大的铜箔作为散热路径并考虑环境温度对 Pd 的降额。
四、封装与安装注意
- SOD-323 为两引脚表贴封装，焊接时避免过热、掌控回流曲线以保护器件。
- 贴装建议：合理布局接地/散热铜箔，保持引脚与走线畅通以利散热与测量点布置。
- 贮存与防静电：按常规半导体器件防静电与防潮要求处理。
五、测试与替代型号
- 推荐在设计验证时测量 Vz 在目标 Iz 条件下的值、反向漏流与温度漂移，并做热仿真验证板级耗散。
- 常见可替代型号（功能相近，选型前请核对电气参数与封装）：BZT52C5V1、BZT52B5V1 等。
MM3Z5V1B 适合用于对体积和成本敏感、需要低功耗参考或简单稳压的应用场景。选型时请结合实际工作电流、环境温度与 PCB 散热条件进行功率降额和电路保护设计。若需完整器件曲线与更详尽的封装尺寸、回流曲线，请索取晶导微电子的正式数据手册。
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